Damper-regulating apparatus.



H. B. WEIR @L J. L. FYKE. DAMPBR RBGULATING APPARATUS.

APPLICATION FILED IEB. 14, 1912.

1,082,920, y Patented De@.'*30,1w913.

2 anims-SHEET 1.

3/ @Afm 20 23 A A.

D/w /VWM iw H. BL WEIR & J. L. PYKE.

DAMPBR RBGULATING APPARATUS.

VPLLIGATION FILED FEB! 14, 1912.

. Samoan gnfkmf a* MAMA Patented Dec. 30, 1913.

' 2 SHEETS-SHEET 2.

r ich HARRY B. W'EIR ANDJ'GHN LOWELL FY'K'E, 0F MILWAUKEE, WISCONSIN.

IDAMPER-:EEQULTING APPARATUS.'

successful operation.

The various novel features of the invention will be apparent from the description and drawings, and will .be particularly set fort-h in the appended claims.

Our invention is illustrated on the accompanying sheets of drawings, in which- Figure 1 is a side. elevation showing the apparatus forming the main body portion vof the damper regulator; Fig. 2 is a top elevation of the same, some parts being in section; Fig. 3 is a diagrammatic sketch showing the general arrangement of parts and connec? tions; Fig.,4 is a fragmentary side elevation of a portion of the apparatus showing the drum unwound with the contacts out of engagement with each other and, Fig. '5 is a detail view of cam member having projections and forming a part of the apparatus.

-The main body portion of the apparatus includes a cast baselO having two sets of integrally formed bearing pedestals 11 and 12 respectively, and an inte rally ormed magnet support 13. Rotata ly 'jounted in the bearing pedestals 11 are two shifts 14 and 15, the former one Aof which is hollow and the latter `011e of which is loosely set and capable to move independently in the former.` Secured to the shaft 14 is a'crank "16 `for rotating a drum 17 preferably screwed onto the shaft 14. The drum is provided with a iiexible winding 1 8 which is kept under tension by a weight 19 associated therewith. Mounted on and secured to the shaft 15 is a con'- ducting cam member 20 having three projections 21, 22, and 23. The projection 21 is normally engaged by a spring-pressed pawl 21 pvotally secured to one side of drum 17 so that when the drum is rotated in a clockwise direction, as viewed in Fig. 1, under the influence of the weight 19, the cam 20 Speoioation of Letters vPatent.

requirements for Patented Dec. 30, 1913.

Application sied rcbruary 14,1912. serial no. 677,539.

and shaft 15 are also rotated in a clockwise direction. Also mounted on and secured to the shaft 15 is a non-conducting disk 25 having an'L-shaped contact 26, which is secured to the disk 25 and electrically connected to the cam member 2O by' a screw 27. This movable contact 26 engages in turn two-stationary contact ngers 28 and 29 which are secured to and insulated from thebase 10. One: end, 30, of the shaft 15 is bent over forming an angle of 90 with the main part 0f the shaft 15. Screwed into the end of part 30 of shaft 15-is a member 31 upon which is loosely mounted a bar 32 secured to the opposite ends of which are two ropes or chains 33. and 34, the former being connected to a damper 35 and the latter connected to a damper 3 5 of-afurnace 37. t

'Mounted in the pedestals l2 is an armature member 38,' one end 39 of which engages in turn the projections 22 and 23 which are 180- apart. The armature member 3 8 normally prevents clockwise rotation of the shatts 14 and 15, with their drum 17, cam member 20 and movable contact disk 2 5. The. armature member 38 is adapted to be attracted by a magnet 4.0 which is heldin place by support 413. When thus attracted or actuated manually by hand-trip 41 in the' support 13, the armature member 38 is tripped to permit said shafts and their parts to rotate. a half revolution. Connected in circuit with the magnet 40 isa battery42 for energizing said magnet when a circuit is completed by the movable member 43 of a thermostat engaging either one of its sta-v tionarycontacts 44 and 45. rlhe thermostat is of lany standard type for controlling the temperature of a room or house.

The operation of the apparatus' is as follows: As shown in Fig. 3 the apparatus is in a normal position and the damper 35 is open with damper 36 closed to raise the temperature of ythe room. As the temperature rises, the thermostat member 43 moves toward contact 45, and upon engaging said contact a circuit is established including thermostat contacts 45 and 43, conductor 46, magnet 40, battery-42, support'13, base 10, one of thepedestals 11, shaft 15 (see Fig. 2), cam member 20, screw 27, movable contact 26, contact finger 28, and conductor 47. The magnet 40 is thereupon. energized, attracting and tripping armature member 38 and permitting the two shafts with their movable contact member 25, cam member 20 and drum to be rotated under the influence of weight 19. At the same ,time member 32 is moved with shaft 15 through half a revolution to close damper 35 and open damper 36. As soon as contact 26 is rotate-d out of engagement with contact finger 28, the circuit above mentioned is broken and the armature member falls away from the magnet 40, and the end 39 of the armature member rises into the path of the projection 23 on' whereupon a circuit -is established including into the position shown in Fig. 3.

thermostat contacts 44 and 43, conductor 46, magnet 40, battery 42, support 13, base 10, one of the pedestals 11, shaft 15, cam member 20, screw 27, contact 26, contact finger 29, and conductor 48. The magnet is thereupon again energized, attracting and tripping armature member 38,thus causing the dampers to be changed briplk e drum winding 18 is so secured to the drum 17 that when the drum has been completely unwound by the weight 19, the movable contact 26 and its coperating contact fingers 28 and 29 will be out of engagement with each other.. (See Fig. 4). With this arrangement the damper 35 will be closed and damper 36 open to insure against overheating and dangerous results occasioned thereby. In order to again render the apparatus operable it will be necessary to wind up the drum. During this process the shaft 15 and the parts secured thereto will remain stationary. In other words, there will be a relative movement between the shafts 14 and 15.

There may be various modifications and arrangements of that here shown and de scribed, and We intend to cover all such modifications and arrangements which do notl depart from the spirit and scope of our invention as set forth in the appended claims.

What we claim as new is:

1. In a damper regulating mechanism, the combination of a weight, a drum having a flexible winding connected to said weight, a shaft upon which said drum is mounted, a second shaft located within and movable relative to the rst shaft, a single cam member having projections and being mounted on said second shaft adjacent said drum, means carried by said drum and engaging one of said projections to render said shafts movable with each other, a single member loosely mounted on the second shaft and being adapted when actuated to change the dampers, an armature member normally engaging anothei` projection on said single cam member to prevent movement of said shafts and drum in one direction, and means for tripping said armature member.

2. In a damper regulating mechanism, the combination of a weight, a drum havin a flexible winding connected to said weig t, means including a crank and shaft for windingup said winding on said drum to store energy in said weight, a second shaft in axial alinement with the first shaft and movable relative thereto, a single cam member having projections and mounted on and movable with Said second shaft, a contact member .mounted on and movable with said second shaft, a spring-pressed member carried by said drum and engaging one of said projections to render said shafts movable with each other, a single member loosely mounted on one end of said second shaft and being adapted when actuated to change the dampers, an armature member normally engaging another projection on said single cam member to prevent movement of said shafts and drum in one direction, and means for closing a circuit through said contact member to trip said armature member.

3. .In a damper regulating mechanism the combination of a weight, a drum havin a iexible winding connected to said weig t, means` including a crank and shaft for winding up the winding on said drum to store energy in said-weight, a second shaft partially located within and movable relatively to said first shaft, a single member having projections and being secured to said second shaft, spring-pressed means secured to the drum to render said shafts movable with each other, a member having a contact and movable with said second shaft, stationary contacts one of which is normally electrically connected to the movable contact, a

single member having damper chains and.

being loosely mounted on said second shaft and being adapted when actuated to change the dampers, an armature member normally engaging another projection on said single projection member to prevent movement of pletely unwound.

4. In adamper regulating mechanism, the

combinationof a casting including a base, f

two sets of bearing pedestals, and a magnet support, two concentric relatively movable shafts mounted in one set of said bearing pedestals, one of said shafts being journaled in the other, a drum adapted to be. rotated by stored energy'and being mounted onone of said shafts, means on the second shaft, coperating means associated with the drum mature-member mounted in said second set of bearing pedestals and normally preventing said shafts from moving together, `a

magnet mounted in said magnet support,

and means for causing under certain predetermined conditions the energization of said magnet to trip said armature member to permit said shafts and drums to be rotated to change the dampers.

` 5. In a damper regulating mechanism, the combination of relatively movable shafts2 va releasable connection between said shaftsln-l cluding a cam'member having three projections and a pawl' whlch engages one ofsald projections, a damper moving member on one of said shafts, 'power means associated with the other shaft for giving motion to said damper moving member, and an automatically controlled pawl engaging in turn the other two projections of said cam member for normally holding said mechanism in a state of rest.

In testimony whereof we aix our slgnatures, in the presence of two witnesses.

HARRY B. WEIR. J. LOWELL FYKE'.

Witnesses: v

Ro. E. Strom., JOHN DAY, Jr. 

